Router Naming Convention for wikimedia.org, 201304

Router Naming Convention for wikimedia.org, 201304

Regular Expressions:

^[^\.]+\.(cr\d+-[a-z]+)\.wikimedia\.org$

Statistics:

Training routers with at least two clustered interfaces: 4
Positive Predictive Value: 0.900
True Positives (green): 9
False Positives (red): 1
IP literals extracted (red): 0
False Negatives, identifier extracted (orange): 1
False Negatives, not matched: 1
Training routers with a single interface in suffix: 1

Legend:

Green	+	Inferred identifier, true positive when evaluated against training data
Orange	-	Inferred identifier, false negative when evaluated against training data
Red	!	Inferred identifier, false positive when evaluated against training data
Red	x	Inferred identifier, but contains part of IP address literal embedded in hostname
	~	False negative, not matched
	o	No regex matched the interface, but the interface was the only interface in this suffix on the router
	*	A filter regex matched the interface

Evaluation against training data:

		cr1-eqiad
208.80.154.193	+	ae0.cr1-eqiad.wikimedia.org
208.80.154.209	+	xe-5-2-1.cr1-eqiad.wikimedia.org

		cr1-sdtpa
208.80.152.198	+	ae0-404.cr1-sdtpa.wikimedia.org
208.80.154.214	+	xe-1-1-0.cr1-sdtpa.wikimedia.org

		cr2-eqiad
208.80.154.194	+	ae0.cr2-eqiad.wikimedia.org
208.80.154.213	+	xe-5-2-1.cr2-eqiad.wikimedia.org
173.241.131.218	+	xe-5-3-1.cr2-eqiad.wikimedia.org
206.126.236.221		eqix-dc2.wikimediafound.com

		cr2-knams
130.244.6.250	~	ge-2-5.br1-knams.wikimedia.org
78.41.155.38	+	xe-0-0-1.cr2-knams.wikimedia.org
195.69.145.176	+	xe-1-1-0.cr2-knams.wikimedia.org
77.109.134.114		gw-wikimedia.init7.net
213.248.93.86		wikimedia-ic-129908-adm-b3.c.telia.net

208.80.152.199	-	ae0-404.cr2-pmtpa.wikimedia.org
208.80.154.210	!	xe-0-0-1.cr1-sdtpa.wikimedia.org

91.198.174.250	o	ve7.te-8-1.csw1-esams.wikimedia.org